Skip to content
c11y - Cyber Security

🛡️ Defensive Countermeasures Playbook

Contributed by:
gil.dev

Windows (Desktop & Server)

Section titled “Windows (Desktop & Server)”
  • Objective: Enable and configure protective software like firewalls and anti-virus.
  • Tools:
    • Windows Security
    • wf.msc (Windows Defender Firewall)
  • Common Actions:
    • Enable Firewall: Go to Windows Security and ensure the Firewall is on for all network profiles (Domain, Private, Public).
    • Enable Antivirus: In Windows Security, go to “Virus & threat protection” and ensure “Real-time protection” is on.
    • Run a Scan: Run a “Quick Scan” or “Full Scan” for malware.
    • Encryption: If required, enable BitLocker (Drive Encryption). `

Linux (Mint 21 & Ubuntu 22)

Section titled “Linux (Mint 21 & Ubuntu 22)”
  • Objective: Enable and configure protective software like firewalls and encryption.
  • Tools:
    • Terminal
  • Common Actions:
    • Enable Firewall: The standard is UFW (Uncomplicated Firewall).
    • sudo ufw enable.
    • sudo ufw default deny incoming.
    • sudo ufw default allow outgoing.
    • Allow Essential Services: Explicitly allow required services, e.g., sudo ufw allow ssh.
    • Encryption: Check if home folder or full disk encryption is enabled.